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PCM1728 数据表(PDF) 4 Page - Texas Instruments |
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PCM1728 数据表(HTML) 4 Page - Texas Instruments |
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4 / 16 page ![]() ® 4 PCM1728 –60dB OUTPUT SPECTRUM (f = 1kHz, f S = 44.1kHz, 24-Bit Data) Frequency (Hz) –60 –70 –80 –90 –100 –110 –120 –130 –140 –150 20 2468 10 12 14 16 18 20 –60dB OUTPUT SPECTRUM (f = 1kHz, f S = 44.1kHz, 16-Bit Data) Frequency (Hz) –60 –70 –80 –90 –100 –110 –120 –130 –140 –150 20 2468 10 12 14 16 18 20 TYPICAL PERFORMANCE CURVES All specifications at +25 °C, +V CC = +VDD = +5V, fS = 44.1kHz, and 24-bit input data, SYSCLK = 384fS, unless otherwise noted. THD+N vs SAMPLING FREQUENCY (V CC = VDD = 5V, 24-Bit) Sampling Frequency f S (kHz) 88 91 94 97 100 103 32 44.1 48 96 256fs 384fs THD+N vs LEVEL (f S = 44.1kHz) Amplitude (dB) 10 1 0.1 0.010 0.001 –20 –40 –60 –80 –100 –30 –50 –70 –90 –50 –60 –40 –30 –20 –10 0 16-Bit 24-Bit DYNAMIC RANGE vs SAMPLING FREQUENCY (V CC = VDD = 5V, 24-Bit) Sampling Frequency f S (kHz) 110 108 106 104 102 100 32 44.1 48 96 256/384f S SNR vs SAMPLING FREQUENCY (V CC = VDD = 5V, 24-Bit) Sampling Frequency f S (kHz) 110 108 106 104 102 100 32 44.1 48 96 256/384f S |
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